and 44 degrees now in the napa valley. by the afternoon, warmer. mid up toker 60s some spots and inland pushing 70 degrees. but a wind advisory through the delta. >>> this is a cbs news special report. i'm anthony mason in new york. president obama about to make a statement about the deadly terror attack at the boston marathon. to get you up to date three people were killed when two bombs went off near the finish line 17 66 people treated at boston area hospitals. no other explosive devices found. bob orr with information on the makeup of the bombs. bob. >> that's right, anthony. law enforcement officials told us they are learning more about the two bombs. these were two ied stzs, impro fized explosive devices placed near ground level. there is conflict inging information on whether they were in trash cans or placed on the ground near trash recans. they were laced with ball bearings, nails. these were purposefully designed to cause maximum damage in a crowded area. no claims of responsibility, there are no official suspects investigators have been